/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataInterfaceTexture.h
Allows data interfaces the opportunity to rename / change the function signature and perform an upgrade. Return true if the signature was modified and we need to refresh the pins / name, etc.
virtual bool UpgradeFunctionCall ( [FNiagaraFunctionSignature](API\Plugins\Niagara\FNiagaraFunctionSignature) & FunctionSignature )